I think that's sort of what services like Texture [1], ShareLaTeX [2], and Authorea [3] are trying to become (at least for papers). For code GitHub for science is generally the same as GitHub for everyone else.

[1] https://elifesciences.org/labs/8de87c33/texture-an-open-scie...

[2] https://www.sharelatex.com/

[3] https://www.authorea.com/